Index: etc/config/sunpro.config
===================================================================
--- etc/config/sunpro.config	(revision 480680)
+++ etc/config/sunpro.config	(working copy)
@@ -9,7 +9,7 @@
 
 # extract the "C++ m.n" substring from version string (whcih changes
 # from one release of the compiler to another)
-CCVER           = $(shell $(CXX) -V 2>&1 | head -n1 | sed 's/.*C\+\+ *\([^ ]*\).*/\1/')
+CCVER          := $(shell $(CXX) -V 2>&1 | head -n1 | sed 's/.*C\+\+ *\([^ ]*\).*/\1/')
 WARNFLAGS       = +w
 DEPENDFLAGS     = -xM
 PICFLAGS        = -KPIC
Index: etc/config/acc.config
===================================================================
--- etc/config/acc.config	(revision 480680)
+++ etc/config/acc.config	(working copy)
@@ -7,9 +7,9 @@
 
 CXX       = aCC
 
-CCVER     = $(shell $(CXX) -V 2>&1 | awk '{ print $$6 }')
-aCC_MAJOR = $(shell echo $(CCVER) | sed "s/[^.]*\.\([0-9]*\)\..*/\1/")
-aCC_MINOR = $(shell echo $(CCVER) | sed "s/[^.]*\.[^.]*\.\([0-9]*\)/\1/")
+CCVER     := $(shell $(CXX) -V 2>&1 | awk '{ print $$6 }')
+aCC_MAJOR := $(shell echo $(CCVER) | sed "s/[^.]*\.\([0-9]*\)\..*/\1/")
+aCC_MINOR := $(shell echo $(CCVER) | sed "s/[^.]*\.[^.]*\.\([0-9]*\)/\1/")
 
 WARNFLAGS = +w +W392 +W655 +W684 +W818 +W819 +W849
 
Index: etc/config/reliant_cds.config
===================================================================
--- etc/config/reliant_cds.config	(revision 480680)
+++ etc/config/reliant_cds.config	(working copy)
@@ -6,7 +6,7 @@
 ##############################################################################
 
 CXX             = CC
-CCVER           = $(shell $(CXX) -V /bogus/file.cpp 2>&1 | head -1 | awk '{ print $4 }')
+CCVER          := $(shell $(CXX) -V /bogus/file.cpp 2>&1 | head -1 | awk '{ print $4 }')
 CXXFLAGS        = -Xe
 WARNFLAGS       =
 DEPENDFLAGS     = -M
Index: etc/config/como.config
===================================================================
--- etc/config/como.config	(revision 480680)
+++ etc/config/como.config	(working copy)
@@ -6,9 +6,9 @@
 ##############################################################################
 
 CXX             = como
-CCVER           = $(shell $(CXX) -v foo.c 2>&1 | head -1 | awk '{ print $$3'})
-CC_MAJOR        = $(shell echo "$(CCVER)" | sed -n "s/^\([^\.]*\).*/\1/p")
-CC_MINOR        = $(shell echo "$(CCVER)" | sed -n "s/^.*\.\([0-9]*\).*/\1/p")
+CCVER          := $(shell $(CXX) -v foo.c 2>&1 | head -1 | awk '{ print $$3'})
+CC_MAJOR       := $(shell echo "$(CCVER)" | sed -n "s/^\([^\.]*\).*/\1/p")
+CC_MINOR       := $(shell echo "$(CCVER)" | sed -n "s/^.*\.\([0-9]*\).*/\1/p")
 
 ifeq ($(CC_MINOR),2)
 CPPFLAGS        = -I$(TOPDIR)/include/ansi --incl_suffixes ::
Index: etc/config/icc.config
===================================================================
--- etc/config/icc.config	(revision 480680)
+++ etc/config/icc.config	(working copy)
@@ -14,7 +14,7 @@
   endif
 endif
 
-CCVER           = $(shell $(CXX) -V foo.c 2>&1 | sed -n "s/.*Version *\([0-9.]*\).*/\1/p")
+CCVER          := $(shell $(CXX) -V foo.c 2>&1 | sed -n "s/.*Version *\([0-9.]*\).*/\1/p")
 CPPFLAGS        = -I$(TOPDIR)/include/ansi
 CXXFLAGS        = -Xc -no_cpprt
 
Index: etc/config/osf_cxx.config
===================================================================
--- etc/config/osf_cxx.config	(revision 480680)
+++ etc/config/osf_cxx.config	(working copy)
@@ -6,7 +6,7 @@
 ##############################################################################
 
 CXX             = cxx
-CCVER           = $(shell $(CXX) -V 2>&1 | awk '{ print $$3 }')
+CCVER          := $(shell $(CXX) -V 2>&1 | awk '{ print $$3 }')
 CXXFLAGS        = -x cxx -nocxxstd -std strict_ansi_errors
 WARNFLAGS       = -w1 -msg_disable 450
 DEPENDFLAGS     = -M -noimplicit_include
Index: etc/config/vacpp.config
===================================================================
--- etc/config/vacpp.config	(revision 480680)
+++ etc/config/vacpp.config	(working copy)
@@ -35,11 +35,11 @@
 endif
 
 # invoke a script to determine the exact version
-CCVER = $(shell etc/config/xlC_version.sh)
+CCVER := $(shell etc/config/xlC_version.sh)
 
 # determine the major and minor version of the compiler
-CXX_MAJOR       = $(shell echo "$(CCVER)" | sed "s/^\([1-9][0-9]*\).*/\1/")
-CXX_MINOR       = $(shell echo "$(CCVER)" | sed "s/[1-9]*\.\([0-9]*\).*/\1/")
+CXX_MAJOR    := $(shell echo "$(CCVER)" | sed "s/^\([1-9][0-9]*\).*/\1/")
+CXX_MINOR    := $(shell echo "$(CCVER)" | sed "s/[1-9]*\.\([0-9]*\).*/\1/")
 
 # determine the major and minor version of the OS on AIX
 ifeq ($(OSNAME),AIX)
Index: etc/config/eccp.config
===================================================================
--- etc/config/eccp.config	(revision 480680)
+++ etc/config/eccp.config	(working copy)
@@ -6,9 +6,9 @@
 ##############################################################################
 
 CXX             = eccp
-CCVER           = $(shell eccp -v foo.c 2>&1 | head -1 | awk '{ print $$8'})
-ECCP_MAJOR      = $(shell echo "$(CCVER)" | sed -n "s/^\([^\.]*\).*/\1/p")
-ECCP_MINOR      = $(shell echo "$(CCVER)" | sed -n "s/^.*\.\([0-9]*\).*/\1/p")
+CCVER          := $(shell eccp -v foo.c 2>&1 | head -1 | awk '{ print $$8'})
+ECCP_MAJOR     := $(shell echo "$(CCVER)" | sed -n "s/^\([^\.]*\).*/\1/p")
+ECCP_MINOR     := $(shell echo "$(CCVER)" | sed -n "s/^.*\.\([0-9]*\).*/\1/p")
 
 ifeq ($(ECCP_MAJOR),2)
     CPPFLAGS        = -I$(TOPDIR)/include/ansi --incl_suffixes ::